CCNP Enterprise Certification Study Guide: Implementing and Operating Cisco Enterprise Network Core Technologies. Ben Piper

UDLD mode should you configure, and which command should you use? (Choose two.)udld portudld port aggressiveNormal modeAggressive mode

      20 Which are true regarding UDLD and Loop Guard? (Choose three.)Loop Guard disables ports on a per-VLAN basis.Loop Guard can be configured to take no action in response to a loop.UDLD can be configured to take no action in response to a loop.UDLD can stop all traffic on an interface.

      21 You need to configure an 802.1Q trunk between two switches, SW1 and SW2. Which of the following interface commands, if configured on each switch, will result in a working 802.1Q trunk? (Choose two.)switchport mode trunk onswitchport trunk encapsulation dot1qswitchport mode dynamic autoswitchport mode dynamic desirableswitchport trunk encapsulation negotiate

      22 You've inherited a large network with several hundred switches. You're not using VLAN 1, but it's active on all trunks as the native VLAN. How can you remove it from all trunks? (Choose two.)Enable native VLAN taggingDisable native VLAN taggingRemove VLAN 1 from all switchesPrune VLAN 1 from all trunksShut down VLAN 1 on all switches